非对称结构形式大型半潜船波浪载荷预报  

Wave Load Prediction of Large Semi-submersible Vessel with Asymmetrical Structure

作　　者：杨洋[1] 都光明 桂满海 赵文斌 王利明 YANG Yang;DU Guangming;GUI Manhai;ZHAO Wenbin;WANG Liming(Tianjin University,Tianjin 300072,China;Yantai Salvage Bureau of the Ministry of Transport,Yantai 264012,Shandong,China;Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China)

机构地区：[1]天津大学,天津300072 [2]交通运输部烟台打捞局,山东烟台264012 [3]上海船舶研究设计院,上海201203

出　　处：《船舶设计通讯》2024年第2期56-60,共5页Journal of Ship Design

基　　金：交通强国建设试点任务“10万吨级半潜打捞工程船研究”。

摘　　要：4岛式半潜船因具有满载水线以下艏部外飘结构,所以船体结构是非对称形式,研究其所受波浪载荷具有一定意义。采用基于三维线性频域势流理论,通过分布源方法计算浮体在波浪中的载荷分布,对4岛式半潜船和常规对称船体半潜船波浪载荷进行长期预报,得到波浪载荷极值,并与规范值进行比较。结果表明,预报4岛式半潜船波浪载荷时应将浪向角设置在0°~360°,否则会造成结果偏差,另外4岛式半潜船艏部外飘结构会造成船体所受波浪载荷增大。Due to the structure of the bow flare,the hull structure of the 4-island semi-submersible vessel is asymmetrical.It is of particular significance to study the wave load on it.Based on the three-dimensional linear frequency domain potential flow theory,the load distribution of the floating body in waves is calculated by the distributed source method,and the wave load of 4-island semi-submersible and conventional symmetrical hull semi-submersible is predicted in the long term,and the extreme values of wave load is obtained and compared with the standard values.The results show that if the wave angle is not set between 0°and 360°,there will be a deviation in the wave load prediction of the 4-island semi-submersible vessel,and the wave load on the hull will increase because of the bow flare of the 4-island semi-submersible vessel.

关 键 词：非对称结构 半潜船 波浪载荷 长期预报 

分 类 号：U661.32[交通运输工程—船舶及航道工程]